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1530315980 = 225411866239
BaseRepresentation
bin101101100110110…
…1100010011001100
310221122120002212122
41123031230103030
511113230102410
6411503552112
752631320424
oct13315542314
93848502778
101530315980
11715907056
123685bb638
131b507801b
14107355484
158e536e55
hex5b36c4cc

1530315980 has 24 divisors (see below), whose sum is σ = 3292047360. Its totient is φ = 597196160.

The previous prime is 1530315937. The next prime is 1530316001. The reversal of 1530315980 is 895130351.

It is a self number, because there is not a number n which added to its sum of digits gives 1530315980.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932300 + ... + 933939.

It is an arithmetic number, because the mean of its divisors is an integer number (137168640).

Almost surely, 21530315980 is an apocalyptic number.

1530315980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530315980 is an abundant number, since it is smaller than the sum of its proper divisors (1761731380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1530315980 is a wasteful number, since it uses less digits than its factorization.

1530315980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866289 (or 1866287 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 1530315980 is about 39119.2533159824. The cubic root of 1530315980 is about 1152.3746721676.

The spelling of 1530315980 in words is "one billion, five hundred thirty million, three hundred fifteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 1866239 3732478 7464956 9331195 18662390 37324780 76515799 153031598 306063196 382578995 765157990 1530315980